Unnecessary Banking Details Verification

My E-Filing was done before the filing season and all was in order but my return was selected for audit. That was all well and good and didn't complain. The audit was completed and finalized. Everything was still fine. Then they came up with the whole banking details needed to be verified which started to annoy me as my bank account has not changed since my last rebate. Even though I was a bit upset I still uploaded all required documents in July when they have requested it. A week later they requested that I upload my documents for the second time which I have done as well. Then they asked me to upload it for the third time and now I am completely and utterly irritated as I have been paid out into this account twice before without any issues and then they ask me to upload the same documents 3 times delaying the whole process of the rebate. Everytime i call in to ask what is going on as it cannot take this long to pay out, they say to me that verification takes up to 21 working days. Today is day 20 of 21 and still nothing. They keep stringing me along saying i should get feedback by the end of the week or the beginning of the next week but still nothing has changed and apparently they cannot escalate it to anyone. SARS agents really have no respect either because they make it seem like the clients are at fault when we request feedback. It should not take this long to verify banking detail after submitting my documents 3 times already. I want this matter resolved ASAP and want my refund. I am tired of the excuses and making calls day in and day out without a proper reasoning. Payout my refund and stop buying time while you sit and do nothing to make sure my payment is made.